Arjendu Pattanayak, Professor of Physics, presented recent results on 'Using quantum back-action to control quantum chaotic systems' at his former homes in Texas at the University of Texas at Austin, and Rice University on Friday, October 12 and Monday, October 15. This reported on work done with Yueheng Shi '21, Sacha Greenfield '19, Jessica Eastman (Australian National University), and Andre Carvalho (Griffiths University).